Summary: Allow EventLogger to directly log from a JSONWriter. This allows the JSONWriter to be shared by EventLogger and potentially EventListener, which is an important step to integrate EventLogger and EventListener. This patch also rewrites EventLoggerHelpers::LogTableFileCreation(), which uses the new API to generate identical log. Test Plan: Run db_bench in debug mode and make sure the log is correct and no assertions fail. Reviewers: sdong, anthony, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D38709
61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
|
|
#include "db/event_logger_helpers.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
namespace {
|
|
inline double SafeDivide(double a, double b) { return b == 0.0 ? 0 : a / b; }
|
|
} // namespace
|
|
|
|
void EventLoggerHelpers::AppendCurrentTime(JSONWriter* jwriter) {
|
|
*jwriter << "time_micros"
|
|
<< std::chrono::duration_cast<std::chrono::microseconds>(
|
|
std::chrono::system_clock::now().time_since_epoch()).count();
|
|
}
|
|
|
|
void EventLoggerHelpers::LogTableFileCreation(
|
|
EventLogger* event_logger, int job_id, uint64_t file_number,
|
|
uint64_t file_size, const TableProperties& table_properties) {
|
|
JSONWriter jwriter;
|
|
AppendCurrentTime(&jwriter);
|
|
jwriter << "job" << job_id
|
|
<< "event" << "table_file_creation"
|
|
<< "file_number" << file_number
|
|
<< "file_size" << file_size;
|
|
|
|
// table_properties
|
|
{
|
|
jwriter << "table_properties";
|
|
jwriter.StartObject();
|
|
|
|
// basic properties:
|
|
jwriter << "data_size" << table_properties.data_size
|
|
<< "index_size" << table_properties.index_size
|
|
<< "filter_size" << table_properties.filter_size
|
|
<< "raw_key_size" << table_properties.raw_key_size
|
|
<< "raw_average_key_size" << SafeDivide(
|
|
table_properties.raw_key_size,
|
|
table_properties.num_entries)
|
|
<< "raw_value_size" << table_properties.raw_value_size
|
|
<< "raw_average_value_size" << SafeDivide(
|
|
table_properties.raw_value_size, table_properties.num_entries)
|
|
<< "num_data_blocks" << table_properties.num_data_blocks
|
|
<< "num_entries" << table_properties.num_entries
|
|
<< "filter_policy_name" << table_properties.filter_policy_name;
|
|
|
|
// user collected properties
|
|
for (const auto& prop : table_properties.user_collected_properties) {
|
|
jwriter << prop.first << prop.second;
|
|
}
|
|
jwriter.EndObject();
|
|
}
|
|
|
|
event_logger->Log(jwriter);
|
|
}
|
|
|
|
} // namespace rocksdb
|